30993945 is an odd 8-digits composite number following 30993944
and preceding 30993946 . In scientific notation, it is written as 3.0993945 × 10^7.
The sum of its digits is 42. It has a total of 4 prime factors and 16 positive divisors.
There are 16402880 positive integers (up to 30993945) that are relatively prime to 30993945.
30993945 has 16 divisors, whose sum is 49972032
The reverse of 30993945 is 54939903
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
thirty million nine hundred ninety-three thousand nine hundred forty-five
Scientific notation
3.0993945 × 10^7
Engineering notation
3.0993945 × 10^6
Prime Factorization
3 × 5 × 131 × 15773
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
30993945
Product of the distinct prime numbers
The prime factorization of 30993945 is 3 × 5 × 131 × 15773.
Since it has a total of 4 prime factors.
6 , 7 , 29 , 33 , 7 , 499 , 3325 , 3557 , 69453 , 75301 , 51498 , 165788 , 6222768 , 8742742 , 46925829 , 76669846 , 113742973 , 664362172 , 8307237797 , 8460749705
n×2
61987890
n×3
92981835
n×4
123975780
n×5
154969725
n÷2
15496972.5
n÷3
10331315
n÷3
7748486.25
n÷5
6198789
n2
960624626663025
n3
2.9773546844439E+22
n4
9.2279967335148E+29
n5
2.8601202321874E+37
2 √n
5567.2205812236
3 √n
314.11761115484
4 √n
74.613809587928
5 √n
31.495997811555
1 , 3 , 5 , 15 , 131 , 393 , 655 , 1965 , 15773 , 47319 , 78865 , 236595 , 2066263 , 6198789 , 10331315 , 30993945
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-30993944
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30993945 can be divided by 16 positive divisors.
The sum of these divisors (counting 30993945) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110001110111000011001
3
Ternary
2011022122200220
4
Quaternary
1312032320121
5
Quinary
30413301240
6
Senary
3024150253
8
Octal
166167031
10
Decimal
30993945
12
Duodecimal
a468389
16
Hexadecimal
1d8ee19
20
Vigesimal
9de4h5
36
Base36
igb2x
md5
133bead78c1754177c8598bb38972d0c
sha1
686f8fd3d4edbe06973e67cd71eb28cdf524963f
sha256
e3344299e6beebb11e71707b71fd1fe7eb491375946500536103e9389047ef94
sha512
f0bcc58428a05d40bff0bf9add53fa4b91cc678ad870f8cf3d246238764b5e19a6865944e5bc1ab1420f5d78fc3b054cb7f86f2c957486bf6d1b4c369bea84af
ripemd-160
867f075f11518310b8b92eacbf4d8b022e64d2cb
Diameter
61987890
Circumference
194740699.83553
Area
3.017891269982E+15
Volume
1.2471514138374E+23
Surface area
1.2071565079928E+16
Circumference
194740699.83553
Perimeter
123975780
Area
960624626663025
Diagonal
43832057.370446
Surface area
5763747759978150
Volume
2.9773546844439E+22
Space diagonal
53683087.466995
Perimeter
92981835
Area
4.1596266509556E+14
Altitude
26841543.733498
Surface area
4.1596266509556E+14
Volume
3.5088461456131E+21
Height
14610685.790149